Improvement in sulky-plows



H. W. MASON. sUL'KYMPLoW.

No. 107,938- Patented oct.; 4, 1870.

UNITED vSTATES PATENT OEEIoE.

HENRY W. MASON, OF IIAGERSTOWN, MARYLAND.

IMPROVEMENT IN suLKY-PLows.

. Specification forming partei' Letters PatentNo. 107,938, dated Optober 4, 1870.

is a tranverse vertical section.

The invention relates to improvelnents in sulky-plows; and consists in the arrangement of the plow and plow-beams for adjustment, as

hereinafter described.

In the drawing, A is the axle, B the landwheel, and C the furrow-wheel, of a sulkyplow, the axle being provided with certain well-known means for raising or lowering the ends next the furrow-wheel, so as. to keep the axle always level, whatever be the depth of the furrowthe tongue a, pivoted at a point near its rear en d betnween metal plates b, that project horizont-ally forward from the front side ot' the axle, to which their rear extremities are secured; a rack, c, attached to the hinder end of the tongue; a pin, d, passing horizontally through the plates b and through either one of the interstices in the rack c,- lugs e, projecting downward from the plate b; a pin,f, passj ing horizontally througlrthe lugs e; and the plow l), the forward end of whose beam h is pivoted upon the pin f.

If the tongue a. be raised on its pivot,'and fixed in that position by the pin d, when brought into its proper position between the draft-animals, it lowersl the plates b, lugs e, and

the forward end of the plow-beam h, which lowering allows the plow to cut a deeper furrow. l

It' the tongue a he lowered on its pivot, when brought into the nearly horizontal position it occupies lbetween the draft-animals, it raises the front end of the plow-beam and causes the plow to cut a shallower furrow.

In moving to and from the place where the machine is to be used, the plow should be kept end an arm, lf, projecting downward, and curved on an arch whose center is the pivot of the plow-beam. A socket,l, loosely incloses the curved arm L and is secured to the adjacent side of the plow-beam. A lever, m., is

jointed at its lower extremity to the bart and connected by a chain, oz., with the socketwl. The chain n runs over a friction-pulley placed between lugso, springing from the rear part of the bar t'. j I

The'lever m is combined with a spring-detent, which, when it catches in some one ot' the recesses in the semicircular rack v', which projects upward from the bar i, holds the lever m in place.

1f the lever-be moved forward it raises the plow, the socket l easily following' the curved arm `k. When the plow is elevated to the proper height, itis retained in that position yby the deteut of the lever m.'

The width of the furrow is regulated *by` shifting the plow toward or from the wheel C,

which runs in the furrow. To preserve the J parallelism of the fur-rows, itis necessary that both ends of the plow-beam should be moved the same distance. f

The anges t of the harz are providediwith slots s, through which pass the set-screws which fasten the bar to the axle. This arrangement provides for shiftin g the rear end of the plow.

Upon the pin f, which is the pivot of the plow-beam, by the side ofthe latter, is placed I claim as new, and desire to secure by Letj The bar t', provided with the slotted iauges t, the plow-beam h, the plates' b, provided with the lugs e, and the pin f, arranged together'as described.

II. W. MASON. Witnesses:

SOLN C. KEMON, CEAS. A. PETTIT. 

